Description 12 18mm HSS Titanium Coated Hole Saw Tooth HSS Hole Saw Cutter Drill Bit 12 14 16 18mm Specification Material High Speed SteelSurface Treatment Titanium CoatedSize 12mm 14mm 16mm 18mmDrill Head Depth 3mmQuantity 1pc It only included one bearing please choose the sithe size you want Features Specially used on metal and steel plate give fast and easy cutting They are good tools for you to make fantastic works Split tip pilot drill prevents damage by gradually guiding cutter to material no walking High speed steel teeth for fast cutting of clean round holes Designed specifically for sheet metal cutting even stainless steel Over drill flange built in to prevent penetration beyond the sheet metal Cuts quick precise holes in stainless steel mild steel iron copper and brass Note If you cut the hard material such as steel ceramic tile etc you need to use the oil or water to low the temperature if not maybe the drill bit will be broken due to high temperature please understand Package Included 1pc x Hole Saw Cutter Drill Bit Notice Please allow 1 3mm error due to manual measurement and make sure you do not mind before ordering Please understand that colors may exist chromatic aberration as the different placement of pictures More Details